RU2013144611A - METHOD FOR DIRECT MELTING OF RAW MATERIALS WITH HIGH SULFUR CONTENT - Google Patents

METHOD FOR DIRECT MELTING OF RAW MATERIALS WITH HIGH SULFUR CONTENT Download PDF

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Publication number
RU2013144611A
RU2013144611A RU2013144611/02A RU2013144611A RU2013144611A RU 2013144611 A RU2013144611 A RU 2013144611A RU 2013144611/02 A RU2013144611/02 A RU 2013144611/02A RU 2013144611 A RU2013144611 A RU 2013144611A RU 2013144611 A RU2013144611 A RU 2013144611A
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melting
ore
bearing
sulfur content
cyclone
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RU2013144611/02A
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Russian (ru)
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RU2600290C2 (en
Inventor
Марк Престон ДЭВИС
Родни Джеймс Драй
Жак ПИЛОТ
Хендрикус Конрад Альбертус МЕЙЕР
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Текнолоджикал Ресорсиз Пти. Лимитед
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    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B13/00Making spongy iron or liquid steel, by direct processes
    • C21B13/0006Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • C21B13/0013Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B13/00Making spongy iron or liquid steel, by direct processes
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B11/00Making pig-iron other than in blast furnaces
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B13/00Making spongy iron or liquid steel, by direct processes
    • C21B13/0006Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
    • C21B13/0026Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide in the flame of a burner or a hot gas stream
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B13/00Making spongy iron or liquid steel, by direct processes
    • C21B13/006Starting from ores containing non ferrous metallic oxides
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B13/00Making spongy iron or liquid steel, by direct processes
    • C21B13/0066Preliminary conditioning of the solid carbonaceous reductant
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B13/00Making spongy iron or liquid steel, by direct processes
    • C21B13/02Making spongy iron or liquid steel, by direct processes in shaft furnaces
    • C21B13/023Making spongy iron or liquid steel, by direct processes in shaft furnaces wherein iron or steel is obtained in a molten state
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00Charging; Discharging; Manipulation of charge
    • F27D3/08Screw feeders; Screw dischargers
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B2100/00Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/20Increasing the gas reduction potential of recycled exhaust gases
    • C21B2100/28Increasing the gas reduction potential of recycled exhaust gases by separation
    • C21B2100/282Increasing the gas reduction potential of recycled exhaust gases by separation of carbon dioxide
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B2100/00Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/40Gas purification of exhaust gases to be recirculated or used in other metallurgical processes
    • C21B2100/42Sulphur removal
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B2100/00Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/40Gas purification of exhaust gases to be recirculated or used in other metallurgical processes
    • C21B2100/44Removing particles, e.g. by scrubbing, dedusting
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B2100/00Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/60Process control or energy utilisation in the manufacture of iron or steel
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B2100/00Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/60Process control or energy utilisation in the manufacture of iron or steel
    • C21B2100/66Heat exchange
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C2100/00Exhaust gas
    • C21C2100/02Treatment of the exhaust gas
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/10Reduction of greenhouse gas [GHG] emissions
    • Y02P10/134Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Iron (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

1. Способ прямого плавления рудоносного переплавляемого материала, содержащего по меньшей мере 0,2 вес.% серы, и производства металла, при этом способ включает (а), по меньшей мере, частичное восстановление и частичное плавление рудоносного переплавляемого материала в плавильном циклоне и (b) полное плавление, по меньшей мере, частично восстановленного/расплавленного материала в плавильной ванне котла прямого плавления, при этом способ отличается поддержанием кислородного потенциала в плавильном циклоне на уровне, достаточном для того, чтобы отходящий газ из плавильного циклона имел степень дожигания, равную по меньшей мере 75%.2. Способ по п.1, отличающийся тем, что содержание серы в рудоносном переплавляемом материале составляет по меньшей мере 0,25 вес.%.3. Способ по п.1, отличающийся тем, что содержание серы в рудоносном переплавляемом материале составляет по меньшей мере 0,3 вес.%.4. Способ по п.1, отличающийся тем, что содержание серы в рудоносном переплавляемом материале составляет по меньшей мере 0,5 вес.%.5. Способ по любому из предыдущих пунктов, включающий поддержание высокой температуры в плавильном циклоне.6. Способ по п.5, включающий поддержание высокой температуры, равной по меньшей мере 1100°C, в плавильном циклоне, если рудоносным переплавляемым материалом является железосодержащий переплавляемый материал.7. Способ по п.1, включающий поддержание кислородного потенциала в плавильном циклоне таким, что отходящий газ из плавильного циклона имеет степень дожигания, равную по меньшей мере 80%.8. Способ по п.1, включающий выбор размера частиц рудоносного переплавляемого материала, предназначенного для подачи в плавил1. A method for direct melting of an ore-bearing remelted material containing at least 0.2 wt.% Sulfur and metal production, the method comprising (a) at least partially recovering and partially melting the ore-bearing remelted material in a melting cyclone and ( b) the complete melting of at least partially reduced / molten material in the melting bath of the direct melting boiler, the method being characterized by maintaining the oxygen potential in the melting cyclone at a level sufficient to ensure that if the exhaust gas from the melting cyclone had a degree of afterburning equal to at least 75% .2. The method according to claim 1, characterized in that the sulfur content in the ore-bearing remelted material is at least 0.25 wt.%. 3. The method according to claim 1, characterized in that the sulfur content in the ore-bearing remelted material is at least 0.3 wt.%. The method according to claim 1, characterized in that the sulfur content in the ore-bearing remelted material is at least 0.5 wt.%. A method according to any one of the preceding claims, comprising maintaining a high temperature in the melting cyclone. 6. The method according to claim 5, comprising maintaining a high temperature of at least 1100 ° C in the melting cyclone, if the ore-bearing melted material is an iron-containing melted material. The method according to claim 1, comprising maintaining the oxygen potential in the melting cyclone such that the exhaust gas from the melting cyclone has a degree of afterburning of at least 80%. The method according to claim 1, comprising selecting a particle size of the ore-bearing remelted material intended for supply to the melted

Claims (12)

1. Способ прямого плавления рудоносного переплавляемого материала, содержащего по меньшей мере 0,2 вес.% серы, и производства металла, при этом способ включает (а), по меньшей мере, частичное восстановление и частичное плавление рудоносного переплавляемого материала в плавильном циклоне и (b) полное плавление, по меньшей мере, частично восстановленного/расплавленного материала в плавильной ванне котла прямого плавления, при этом способ отличается поддержанием кислородного потенциала в плавильном циклоне на уровне, достаточном для того, чтобы отходящий газ из плавильного циклона имел степень дожигания, равную по меньшей мере 75%.1. A method for direct melting of an ore-bearing remelted material containing at least 0.2 wt.% Sulfur and metal production, the method comprising (a) at least partially recovering and partially melting the ore-bearing remelted material in a melting cyclone and ( b) the complete melting of at least partially reduced / molten material in the melting bath of the direct melting boiler, the method being characterized by maintaining the oxygen potential in the melting cyclone at a level sufficient to ensure that if the exhaust gas from the melting cyclone had a degree of afterburning equal to at least 75%. 2. Способ по п.1, отличающийся тем, что содержание серы в рудоносном переплавляемом материале составляет по меньшей мере 0,25 вес.%.2. The method according to claim 1, characterized in that the sulfur content in the ore-bearing smelted material is at least 0.25 wt.%. 3. Способ по п.1, отличающийся тем, что содержание серы в рудоносном переплавляемом материале составляет по меньшей мере 0,3 вес.%.3. The method according to claim 1, characterized in that the sulfur content in the ore-bearing smelted material is at least 0.3 wt.%. 4. Способ по п.1, отличающийся тем, что содержание серы в рудоносном переплавляемом материале составляет по меньшей мере 0,5 вес.%.4. The method according to claim 1, characterized in that the sulfur content in the ore-bearing smelted material is at least 0.5 wt.%. 5. Способ по любому из предыдущих пунктов, включающий поддержание высокой температуры в плавильном циклоне.5. The method according to any one of the preceding paragraphs, comprising maintaining a high temperature in the melting cyclone. 6. Способ по п.5, включающий поддержание высокой температуры, равной по меньшей мере 1100°C, в плавильном циклоне, если рудоносным переплавляемым материалом является железосодержащий переплавляемый материал.6. The method according to claim 5, comprising maintaining a high temperature of at least 1100 ° C in the melting cyclone, if the ore-bearing melted material is an iron-containing melted material. 7. Способ по п.1, включающий поддержание кислородного потенциала в плавильном циклоне таким, что отходящий газ из плавильного циклона имеет степень дожигания, равную по меньшей мере 80%.7. The method according to claim 1, comprising maintaining the oxygen potential in the melting cyclone such that the exhaust gas from the melting cyclone has a degree of afterburning equal to at least 80%. 8. Способ по п.1, включающий выбор размера частиц рудоносного переплавляемого материала, предназначенного для подачи в плавильный циклон, таким образом, чтобы он составлял не более 6 мм.8. The method according to claim 1, comprising selecting a particle size of the ore-bearing remelted material to be fed into the melting cyclone, so that it is not more than 6 mm 9. Способ по п.1, включающий то, что размер рудоносного переплавляемого материала, предназначенного для подачи в плавильный циклон, составляет менее чем 1 мм.9. The method according to claim 1, including the fact that the size of the ore-bearing remelted material intended for supply to the melting cyclone is less than 1 mm 10. Способ прямого плавления рудоносного переплавляемого материала, содержащего по меньшей мере 0,2 вес.% серы, в плавильном циклоне и котел прямого плавления, содержащий ванну расплавленного металла, отличающийся поддержанием кислородного потенциала в плавильном циклоне на уровне, достаточном для того, чтобы отходящий газ из плавильного циклона имел степень дожигания, равную по меньшей мере 75%.10. Method for direct melting of an ore-bearing remelted material containing at least 0.2 wt.% Sulfur in a melting cyclone and a direct melting boiler containing a molten metal bath, characterized by maintaining the oxygen potential in the melting cyclone at a level sufficient to ensure that the waste gas from the melting cyclone had a degree of afterburn equal to at least 75%. 11. Металлический продукт имеющий содержание серы менее чем 0,2 вес.%, получаемый из рудоносного переплавляемого материала, имеющего содержание серы по меньшей мере 0,2 вес.%.11. A metal product having a sulfur content of less than 0.2 wt.%, Obtained from ore-bearing remelted material having a sulfur content of at least 0.2 wt.%. 12. Железный продукт, имеющий содержание серы менее чем 0,2 вес.%, получаемый из рудоносного переплавляемого материала имеющего содержание серы по меньшей мере 0,2 вес.%. 12. Iron product having a sulfur content of less than 0.2 wt.%, Obtained from ore-bearing remelted material having a sulfur content of at least 0.2 wt.%.
RU2013144611/02A 2011-03-21 2012-03-21 Direct smelting process for high sulphur feed RU2600290C2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AU2011901040A AU2011901040A0 (en) 2011-03-21 Direct Smelting Process for High Sulphur Feed
AU2011901040 2011-03-21
PCT/AU2012/000293 WO2012126055A1 (en) 2011-03-21 2012-03-21 Direct smelting process for high sulphur feed

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RU2600290C2 RU2600290C2 (en) 2016-10-20

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EP (1) EP2689041B1 (en)
JP (1) JP5946201B2 (en)
KR (1) KR101957536B1 (en)
CN (1) CN103534363B (en)
ES (1) ES2874814T3 (en)
PL (1) PL2689041T3 (en)
RU (1) RU2600290C2 (en)
WO (1) WO2012126055A1 (en)

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Publication number Priority date Publication date Assignee Title
DE102013113197A1 (en) * 2013-11-28 2015-05-28 Voestalpine Stahl Gmbh Method for processing desulfurization slag
EP3084013B1 (en) * 2013-12-19 2020-04-15 Tata Steel Nederland Technology B.V. Method to operate a smelt cyclone
JP7177435B2 (en) * 2018-10-16 2022-11-24 国立研究開発法人日本原子力研究開発機構 Equipment and method for treating aluminum chips
AU2020346361A1 (en) * 2019-09-12 2022-03-17 Tata Steel Ijmuiden B.V. Method of introducing a metalliferous feed in an ironmaking process
WO2023244479A1 (en) 2022-06-15 2023-12-21 Nucor Corporation A direct bath smelting process with management of peripheral cold zones at the metal-slag interface

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DE3607774A1 (en) * 1986-03-08 1987-09-17 Kloeckner Cra Tech METHOD FOR TWO-STAGE MELT REDUCTION OF IRON ORE
CN1037193C (en) * 1994-05-23 1998-01-28 冶金工业部长沙矿冶研究院 Method for producing direct reduced iron
NL9401103A (en) * 1994-07-01 1996-02-01 Hoogovens Groep Bv Method and device for the pre-reduction of iron compounds.
NL9500264A (en) * 1995-02-13 1996-09-02 Hoogovens Staal Bv Method for producing liquid pig iron.
IT1291118B1 (en) * 1997-03-25 1998-12-29 Sviluppo Materiali Spa PROCEDURE FOR THE DIRECT PRODUCTION OF CAST IRON STARTING FROM FINE IRON MINERAL AND FOSSIL COAL AND APPARATUS SUITABLE FOR
AUPP647198A0 (en) * 1998-10-14 1998-11-05 Technological Resources Pty Limited A process and an apparatus for producing metals and metal alloys
JP4540172B2 (en) * 2000-03-30 2010-09-08 株式会社神戸製鋼所 Production of granular metallic iron

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JP2014514441A (en) 2014-06-19
PL2689041T3 (en) 2021-10-25
EP2689041A4 (en) 2014-10-08
ES2874814T3 (en) 2021-11-05
CN103534363A (en) 2014-01-22
EP2689041A1 (en) 2014-01-29
WO2012126055A1 (en) 2012-09-27
EP2689041B1 (en) 2021-04-28
JP5946201B2 (en) 2016-07-05
RU2600290C2 (en) 2016-10-20
KR101957536B1 (en) 2019-03-13
CN103534363B (en) 2017-08-01
KR20140027163A (en) 2014-03-06

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